Home / 14,586.14-20,129.27-8,920.79

Finding the Fourth Proportional to 14,586.14, 20,129.27 and 8,920.79

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Solution

The fourth proportional to 14,586.14, 20,129.27 and 8,920.79 is: 12,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.14 : 20,129.27 = 8,920.79 : x
  2. Step 2: Convert to fraction form
    14,586.14/20,129.27 = 8,920.79/x
  3. Step 3: Cross multiply
    14,586.14x = 20,129.27 × 8,920.79
  4. Step 4: Simplify right side
    14,586.14x = 179,568,889.88
  5. Step 5: Solve for x
    x = 179,568,889.88/14,586.14
  6. Step 6: Final answer
    x = 12,310.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.